Finding the Fourth Proportional to 252.64, 378.97 and 98.55
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Solution
The fourth proportional to 252.64, 378.97 and 98.55 is: 147.83
Step by Step Solution
- Step 1: Write the proportion equation
252.64 : 378.97 = 98.55 : x - Step 2: Convert to fraction form
252.64/378.97 = 98.55/x - Step 3: Cross multiply
252.64x = 378.97 × 98.55 - Step 4: Simplify right side
252.64x = 37,347.25 - Step 5: Solve for x
x = 37,347.25/252.64 - Step 6: Final answer
x = 147.83
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.